[Bug-gnubg] Clocks in gnubg ?

there's more and more acceptance of
clocks in bg tournaments and I rememebr that fora while we had a "clocks"
option in gnubg (actually quite complete, multiple types of clocks,mostly for chess fans).

I do think it would be nice to have
this in gnubg, and it would be a feature others don't have,at least at the moment.

For match, the most common clock format
seems to be a fixed time per player (dependenton the match length) + a per move bonus
(reset at each move).When player A goes on roll, the bonus
time goes down from it predefined value.If A moves whithin the bonus time, it's
total time will not decrease. If A has not completedits move after the bonus time has reached
zero, A's time starts to decrease. Notice that,playing over a real board, the bonus
time is partially eaten at each roll by the process "pickup the dice, shake, roll".

If such thing could be made into gnubg,
nice features would be (my own order of importance):